The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:819 advisory.

  - A flaw was found in the way the flags member of the new pipe buffer structure was lacking proper     initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus     contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache     backed by read only files and as such escalate their privileges on the system. (CVE-2022-0847)

  - A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the     way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or     escalate their privileges on the system. (CVE-2022-0330)

  - A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends     a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.
    This flaw allows a remote user to crash the system or possibly escalate their privileges if they have     access to the TIPC network. (CVE-2022-0435)

  - A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the     kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups     v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
    (CVE-2022-0492)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9244 advisory.

    - lib/iov_iter: initialize 'flags' in new pipe_buffer (Max Kellermann)  [Orabug: 33942325]     {CVE-2022-0847}
    - arm64: Use the clearbhb instruction in mitigations (James Morse)  [Orabug: 33937423] {CVE-2022-23960}
    - arm64: add ID_AA64ISAR2_EL1 sys register (Joey Gouly)  [Orabug: 33937423] {CVE-2022-23960}
    - KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated (James Morse)  [Orabug:
    33937423] {CVE-2022-23960}
    - arm64: Mitigate spectre style branch history side channels (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - KVM: arm64: Add templates for BHB mitigation sequences (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: Add Cortex-X2 CPU part definition (Anshuman Khandual)  [Orabug: 33937423] {CVE-2022-23960}
    - arm64: Add Neoverse-N2, Cortex-A710 CPU part definition (Suzuki K Poulose)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: Add part number for Arm Cortex-A77 (Rob Herring)  [Orabug: 33937423] {CVE-2022-23960}
    - arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2 (James Morse)  [Orabug:
    33937423] {CVE-2022-23960}
    - arm64: Add percpu vectors for EL1 (James Morse)  [Orabug: 33937423] {CVE-2022-23960}
    - arm64: entry: Add macro for reading symbol addresses from the trampoline (James Morse)  [Orabug:
    33937423] {CVE-2022-23960}
    - arm64: entry: Add vectors that have the bhb mitigation sequences (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Allow the trampoline text to occupy multiple pages (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Make the kpti trampoline's kpti sequence optional (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Move trampoline macros out of ifdef'd section (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Don't assume tramp_vectors is the start of the vectors (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Allow tramp_alias to access symbols after the 4K boundary (James Morse)  [Orabug:
    33937423] {CVE-2022-23960}
    - arm64: entry: Move the trampoline data page before the text page (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Free up another register on kpti's tramp_exit path (James Morse)  [Orabug: 33937423]     {CVE-2022-23960}
    - arm64: entry: Make the trampoline cleanup optional (James Morse)  [Orabug: 33937423] {CVE-2022-23960}
    - arm64: entry.S: Add ventry overflow sanity checks (James Morse)  [Orabug: 33937423] {CVE-2022-23960}
    - Revert 'BACKPORT: VARIANT 2: arm64: Add initial retpoline support' (Russell King)  [Orabug: 33937423]     {CVE-2022-23960}
    - Revert 'BACKPORT: VARIANT 2: arm64: asm: Use *_nospec variants for blr and br.' (Russell King)  [Orabug:
    33937423] {CVE-2022-23960}
    - Revert 'BACKPORT: VARIANT 2: arm64: Add MIDR_APM_POTENZA.' (Russell King)  [Orabug: 33937423]     {CVE-2022-23960}
    - Revert 'BACKPORT: VARIANT 2: arm64: insn: Add offset getter/setter for adr.' (Russell King)  [Orabug:
    33937423] {CVE-2022-23960}
    - Revert 'BACKPORT: VARIANT 2: arm64: alternatives: Add support for adr/adrp with offset in alt block.'     (Russell King)  [Orabug: 33937423] {CVE-2022-23960}
    - Revert 'BACKPORT: VARIANT 2: arm64: Use alternative framework for retpoline.' (Russell King)  [Orabug:
    33937423] {CVE-2022-23960}
    - Revert 'Arm64: add retpoline to cpu_show_spectre_v2' (Russell King)  [Orabug: 33937423] {CVE-2022-23960}
    - Revert 'arm64: retpoline: Don't use retpoline in KVM's HYP part.' (Russell King)  [Orabug: 33937423]     {CVE-2022-23960}
    - Revert 'uek-rpm: aarch64 config enable RETPOLINE' (Russell King)  [Orabug: 33937423] {CVE-2022-23960}
    - Revert 'uek-rpm: aarch64 config enable RETPOLINE OL8' (Russell King)  [Orabug: 33937423]     {CVE-2022-23960}
    - x86/speculation: Add knob for eibrs_retpoline_enabled (Patrick Colp)  [Orabug: 33937344]     {CVE-2021-26401}
    - x86/speculation: Extend our code to properly support eibrs+lfence and eibrs+retpoline (Patrick Colp)     [Orabug: 33937344]  {CVE-2021-26401}
    - x86/speculation: Update link to AMD speculation whitepaper (Kim Phillips)  [Orabug: 33937344]     {CVE-2021-26401}
    - x86/speculation: Use generic retpoline by default on AMD (Kim Phillips)  [Orabug: 33937344]     {CVE-2021-26401}
    - x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting (Josh Poimboeuf)     [Orabug: 33937344]  {CVE-2021-26401}
    - Documentation/hw-vuln: Update spectre doc (Peter Zijlstra)  [Orabug: 33937344]  {CVE-2021-26401}
    - x86/speculation: Add eIBRS + Retpoline options (Peter Zijlstra)  [Orabug: 33937344]  {CVE-2021-26401}
    - x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE (Peter Zijlstra (Intel))  [Orabug: 33937344]     {CVE-2021-26401}
    - x86/speculation: Merge one test in spectre_v2_user_select_mitigation() (Borislav Petkov)  [Orabug:
    33937344]  {CVE-2021-26401}
    - x86/speculation: Update ALTERNATIVEs to (more closely) match upstream (Patrick Colp)  [Orabug: 33937344]     {CVE-2021-26401}
    - x86/speculation: Fix bug in retpoline mode on AMD with  (Patrick Colp)  [Orabug: 33937344]     {CVE-2021-26401}
    - netfilter: nf_tables_offload: incorrect flow offload action array size (Pablo Neira Ayuso)  [Orabug:
    33900416]  {CVE-2022-25636}
    - KVM: x86: nSVM: don't copy virt_ext from vmcb12 (Maxim Levitsky)  [Orabug: 33805849]  {CVE-2021-3653}     {CVE-2021-3656}
    - drm/i915: Flush TLBs before releasing backing store (Tvrtko Ursulin)  [Orabug: 33835810]     {CVE-2022-0330}
    - tipc: improve size validations for received domain records (Jon Maloy)  [Orabug: 33850801]     {CVE-2022-0435} {CVE-2022-0435}
    - USB: gadget: bRequestType is a bitfield, not a enum (Greg Kroah-Hartman)  [Orabug: 33739525]     {CVE-2021-39685}
    - USB: gadget: zero allocate endpoint 0 buffers (Greg Kroah-Hartman)  [Orabug: 33739525]  {CVE-2021-39685}
    - USB: gadget: detect too-big endpoint 0 requests (Greg Kroah-Hartman)  [Orabug: 33739525]     {CVE-2021-39685}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2022:0825 advisory.

  - kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

  - kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container     breakout (CVE-2021-4154)

  - kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

  - kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

  - kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

  - kernel: missing check in ioctl allows kernel memory read/write (CVE-2022-0516)

  - kernel: improper initialization of the flags member of the new pipe_buffer (CVE-2022-0847)

  - kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux     kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped.
    However, the handler may not have time to run if the frontend quickly toggles between the states connect     and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving     guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege     escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
    (CVE-2020-29569)

  - In memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to     uninitialized data. This could lead to local information disclosure with no additional execution     privileges needed. User interaction is not needed for exploitation. (CVE-2021-0938)

  - A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through     crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected     versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 (CVE-2021-22600)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow     an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)

  - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP     association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and     the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

  - In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This     could lead to local information disclosure with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-150694665References: Upstream kernel (CVE-2021-39633)

  - In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an     incorrect flag check. This could lead to local escalation of privilege with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)

  - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation. (CVE-2021-39698)

  - A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size     increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS     filesystem otherwise not accessible to them. (CVE-2021-4155)

  - A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures.
    Internal memory locations could be returned to userspace. A local attacker with the permissions to insert     eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit     mitigations in place for the kernel. (CVE-2021-4159)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and     SO_PEERGROUPS race with listen() (and connect())  in the Linux kernel. In this flaw, an attacker with a     user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.
    This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object. (CVE-2021-44733)

  - In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information     leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based     attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

  - A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c     in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system     Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. (CVE-2022-0487)

  - A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the     kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups     v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
    (CVE-2022-0492)

  - A flaw null pointer dereference in the Linux kernel UDF file system functionality was found in the way     user triggers udf_file_write_iter function for the malicious UDF image. A local user could use this flaw     to crash the system. Actual from Linux kernel 4.2-rc1 till 5.17-rc2. (CVE-2022-0617)

  - A flaw was found in the way the 'flags' member of the new pipe buffer structure was lacking proper     initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus     contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache     backed by read only files and as such escalate their privileges on the system. (CVE-2022-0847)

  - A flaw use after free in the Linux kernel FUSE filesystem was found in the way user triggers write(). A     local user could use this flaw to get some unauthorized access to some data from the FUSE filesystem and     as result potentially privilege escalation too. (CVE-2022-1011)

  - The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various    security and bugfixes.
    (CVE-2022-22942)

  - An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the     O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a     regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file     descriptor. (CVE-2022-24448)

  - An issue was discovered in drivers/usb/gadget/function/rndis.c in the Linux kernel before 5.16.10. The     RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. Attackers can obtain sensitive     information from kernel memory. (CVE-2022-25375)

  - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has     EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)

  - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to     obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)

  - In drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel before 5.16.12, the endpoint index is not     validated and might be manipulated by the host for out-of-array access. (CVE-2022-27223)

  - A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and     net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap     objects and may cause a local privilege escalation threat. (CVE-2022-27666)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could     happen if removing device (that is not common to remove video card physically without power-off, but same     happens if 'unbind' the driver). (CVE-2020-27820)

  - An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux     kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped.
    However, the handler may not have time to run if the frontend quickly toggles between the states connect     and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving     guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege     escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
    (CVE-2020-29569)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow     an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)

  - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP     association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and     the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

  - In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This     could lead to local information disclosure with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-150694665References: Upstream kernel (CVE-2021-39633)

  - In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an     incorrect flag check. This could lead to local escalation of privilege with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)

  - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-185125206References: Upstream kernel (CVE-2021-39698)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and     SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a     user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.
    This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object. (CVE-2021-44733)

  - In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information     leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based     attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

  - A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends     a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.
    This flaw allows a remote user to crash the system or possibly escalate their privileges if they have     access to the TIPC network. (CVE-2022-0435)

  - A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c     in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system     Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. (CVE-2022-0487)

  - A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the     kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups     v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
    (CVE-2022-0492)

  - A flaw null pointer dereference in the Linux kernel UDF file system functionality was found in the way     user triggers udf_file_write_iter function for the malicious UDF image. A local user could use this flaw     to crash the system. Actual from Linux kernel 4.2-rc1 till 5.17-rc2. (CVE-2022-0617)

  - A flaw was found in the way the 'flags' member of the new pipe buffer structure was lacking proper     initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus     contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache     backed by read only files and as such escalate their privileges on the system. (CVE-2022-0847)

  - A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers write().
    This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in     privilege escalation. (CVE-2022-1011)

  - An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the     O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a     regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file     descriptor. (CVE-2022-24448)

  - An issue was discovered in drivers/usb/gadget/function/rndis.c in the Linux kernel before 5.16.10. The     RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. Attackers can obtain sensitive     information from kernel memory. (CVE-2022-25375)

  - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has     EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)

  - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to     obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)

  - In drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel before 5.16.12, the endpoint index is not     validated and might be manipulated by the host for out-of-array access. (CVE-2022-27223)

  - A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and     net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap     objects and may cause a local privilege escalation threat. (CVE-2022-27666)

  - kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

  - A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures.
    Internal memory locations could be returned to userspace. A local attacker with the permissions to insert     eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit     mitigations in place for the kernel. (CVE-2021-4159)

  - kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote NewStart CGSL host, running version MAIN 6.06, has kernel packages installed that are affected by multiple vulnerabilities:

  - A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends     a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.
    This flaw allows a remote user to crash the system or possibly escalate their privileges if they have     access to the TIPC network. (CVE-2022-0435)

  - An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the     hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session     or terminate that session. (CVE-2020-36516)

  - A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through     crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected     versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 (CVE-2021-22600)

  - A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device     driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A     local user could use this flaw to get unauthorized access to some data. (CVE-2021-4135)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
158842	Rocky Linux 8 : kernel-rt (RLSA-2022:819)	Nessus	Rocky Linux Local Security Checks	3/11/2022	1/16/2023	high
159186	Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2022-9244)	Nessus	Oracle Linux Local Security Checks	3/23/2022	10/22/2024	high
159302	CentOS 8 : kernel (CESA-2022:0825)	Nessus	CentOS Local Security Checks	3/29/2022	1/13/2023	high
163156	EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2022-2054)	Nessus	Huawei Local Security Checks	7/14/2022	1/13/2023	high
163224	EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2022-2026)	Nessus	Huawei Local Security Checks	7/15/2022	1/13/2023	high
266227	NewStart CGSL MAIN 6.06 : kernel Multiple Vulnerabilities (NS-SA-2025-0206)	Nessus	NewStart CGSL Local Security Checks	9/30/2025	9/30/2025	high
173106	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-070)	Nessus	Amazon Linux Local Security Checks	3/21/2023	8/22/2024	high

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